Hearing Connector Locking Mechanism for Tool-Free Secure Attachment

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Solution Overview

Problem

Hearing devices with multiple parts are prone to malfunctioning if not properly and securely locked together, and existing locking mechanisms are often delicate and require tools, making them difficult for users to operate.

Innovation Solution

A hearing device design featuring a behind-the-ear housing with a connector and locking element that allows secure attachment and detachment without tools, utilizing a guide and locking mechanism that shifts between open and locked states to prevent accidental disconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a locking mechanism is made small and delicate to fit the hearing device, then the device size is reduced, but the locking mechanism becomes prone to breaking and requires tools for operation

Engineering Contradiction:
Improvehearing device sizeVSAvoidlocking mechanism durability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The locking mechanism is divided into distinct functional segments: a locking element with protrusion for engagement, a guide structure for alignment, and a connector with receiving features. This segmentation allows each component to be optimized for its specific function while maintaining overall compactness and reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism is designed as a self-operating system where the locking element automatically engages with the connector through relative movement, and can be released by simple manual manipulation without requiring external tools. The guide ensures proper alignment during self-engagement

Inventive Principle:
Principle #25Self-service

2Ease of operation

If a locking mechanism is made robust and simple to operate without tools, then ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improvelocking mechanism operabilityVSAvoidlocking mechanism structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Multiple functions are merged into the locking element: it provides both the locking function through its protrusion and the guiding function through its integration with the guide structure. The connector also merges the receiving feature for the protrusion with the overall connection interface, reducing the need for separate components

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the connector is made removable for cleaning and replacement, then maintenance capability is improved, but the risk of accidental disconnection increases

Engineering Contradiction:
Improveconnector maintainabilityVSAvoidconnector connection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The guide structure performs preliminary alignment action before the locking element engages with the connector. This preliminary positioning ensures that when the connector is attached, it is properly aligned and will engage securely, reducing the risk of accidental disconnection while maintaining removability for maintenance

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4489443A1A hearing device comprising a connector and a locking element
Publication Date: 2025.01.08 GN HEARING AS
  • EP4489443A1 patent drawingFigure 1a
  • EP4489443A1 patent drawingFigure 1b
  • EP4489443A1 patent drawingFigure 1c

AI summary

The disclosure relates to a hearing device (2) comprising: - a behind-the-ear housing (4), where the housing comprises a bottom part (6), a top part (8) opposite the bottom part (6), a front part (10), and a rear part (12) opposite the front part (10), - a connector (14), the connector (14) is configured to be removably attached to the housing (4), where the connector (14) is configured for connecting the housing (4) to an element (16), the element (16) is being configured to be arranged in or at the ear of the user, wherein the housing (4) comprises a locking element (18), where the locking element (18) is configured for locking the connector (14) to/in the housing (4), and wherein the housing (4) comprises a guide (20) for at least a part of the connector (14).